Two dimensional modulational instability in photorefractive media
M. Saffman, Glen McCarthy, Wieslaw Królikowski
Abstract
We study theoretically and experimentally the modulational instability of broad optical beams in photorefractive nonlinear media. We demonstrate the impact of the anisotropy of the nonlinearity on the growth rate of periodic perturbations. Our findings are confirmed by experimental measurements in a strontium barium niobate photorefractive crystal.
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